Hello @REI-JohnJ -- I'm also interested, and also part of many forums of folks who would love this gear.  I ask that REI please keep gender equity in mind, and offer more common women's sizes as well as men's (for example, REI currently doesn't offer any 75mm smaller than 40, which means the average-or-smaller woman can't get 75mm boots at REI).  Hopefully with the Xplore system, REI will keep all sizes/genders in mind.  And hopefully REI will offer the XPLORE system!  Thanks!